Watee closet cistern



(No Model.)

H. A. EGAN. WATER CLOSET GISTERN.

No. 431,023. Patented June 24, 1890.

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UNITED STATES PATENT OFFICE.

HENRY A. EGAN, OF MONTREAL, QUEBEC, CANADA.

WATER-CLOSET CISTERN.

SPECIFICATION forming part of Letters Patent NO. 431,023, dated June 24, 1890.

Application filed August 26, 1889. Serial No. 321,913. (No model.)

To all whom it may concern.-

Be it known that I, HENRY ADAM EGAN, of the city of Montreal, in the district of Montreal and Province of Quebec, Canada, have invented certain new and useful Improve mentsin ater-Closet Oisterns; and Ido hereby declare that the following is a full, clear, and exact description of the same.

My invention has for its object to provide a cistern, principally for use in connection with water-closets, which requires 11 either ballcock, valve, or lever, and will also do away with the inconveniences now attendant on the use of cast-iron cisterns from the metal sweating and the dripping staining the seat or clothes of the occupant.

I propose to construct my cistern as a double shell or concentric cylinders, the inner being carried clear of the outer one all round, both cylinders having closed ends, the upper ones being, if desired, made removable. In the head of the inner cylinder is formed an opening, through which passes the stem or spindle of a float, serving to close such opening. The inlet-pipe is led through the outer cylinder into the inner one at a point preferably near the top, and then turned downward, a small aperture being formed in it to prevent siphonage. From the lower end of this inner cylinder I take the discharge or outlet pipe to the closet, the flush being controlled or cutoff by a suitable valve or equivalent means. A wastepipe leads from the lower end of the outer cylinder to the discharge-pipe from the cistern at a point below the valve. For full comprehension, however, of the invention reference must be had to the annexed drawings,

' forming part of this specification, in which- Figure 1 is a view of the cistern, &c., with both cylinders partially broken away, and Fig. 2 a sectional plan View on line 00 00, Fig. 1.

Similar letters of reference indicate like parts.

A is the outer cylinder, of any suitable diameter and length, with closed lower end and upper end A, made preferably removable and perforated for air, as at a, the whole being carried 011 any suitable brackets from the wall.

B is the inside cylinder, set concentrically in A and of such less diameter as will give a clear space all round. The head B of this cylinder is usually flanged and\ arranged to be movable, and in it are formed openings 1) 1), those I) being closed by a float C, provided with a washer O to make a water-tight joint, (3 being the stem passing up through I).

D is the inlet-pipe, taken from any usual water-supply into the cylinder B and bent downward, as shown in Fig. 1, and d is an aperture formed in it, as shown in Fig. l, for air and to prevent siphonage in case the water be turned off at main stop-cock.

E is the discharge-pipe from the cistern to the closet, and F the valve for regulating or cutting off the flow. This valve F may be operated by any of the well-known means for regulating the flushing of closets, and be provided with any suitable device for measuring the amount of flow.

G is the waste or drain pipe, taken from the under side of the cistern A, usually to the closet or soil-pipe. This serves to drain off any water which may spirt up through the opening 19 in the head of the inner cylinder, or moisture which may arise from condensation on its surface, which, with the ordinary iron cistern, is likely to stain when dripping and to cause bad smells.

What I claim is as follows:

1. In a cistern for water-closets, the combination of a double cylinder, inlet and discharge pipes connected with inner shell, aperture in head of same and float to close it, and waste-pipe connected to outer shell and soilpipe or closet, all as herein described, and for the purposes set forth.

2. In a water-closet cistern, the combination, with a double cistern, of an inlet-pipe communicating with inner shell and bent down in same, an air-aperture in said pipe, and openings in the heads of both cylinders, all as and for the purposes set forth.

Montreal, August 17, 1889.

HENRY A. EGAN.

Witnesses:

J AMES LUMsDEN, WM. P. MCFEAT. 

